Improved evaporator



2 Sheets-Sheet 1.

I. M. LOVE.

EVAPORATORJ. No. 48,628. Patented July 4, 1865.

g R Q Will 6373 umo wAsmnamn n c 2 SheetsSheet 2.

P. M. LOVE.

EVAPORATOR.

Patented July 4, 1 865.

YNE NORFNS PEIERS co, PnoT'o-Ln'ua, wnsumamm n. c.

UNITED STATES PATENT OFFICE.

-F. M. LOVE, OF WALDRON, INDIANA, ASSIGNOR TO HIMSELF AND SAML. O. LOVE, OF SAME PLACE.

lM PROVED EVAPORATOR.

Specification forming part of Letters Patent No. 48.628, dated July 4, 1865.

To all whom it may concern:

Be it known that I, F. M. LOVE, of Waldron,

in the county of Shelby and State of Indiana, have invented a new and useful Machine for Obtaining Molasses from Sugar-Cane, called F Superior and 1 do hereby declare that the following'is a full and exact description thereof, reference being had to the annexed drawings, making part of this specification, in which- Figural is a perspective view; Fig. 2, a section, and Fig 3a top view.

The nature of my invention consists in constructing a furnace with two or more gradua-' tions, as shown in Figs. 1 and 2.

Thetops B B B B are of iron, and so constructed, .asshown in Fig. 3, that, if desired, the fire from the furnace can play upon the bottoms of the movable-iron boxes 0, O, 0 'and D, in which the juice ot' the sugar-cane is placed. Fig. 2 shows that when the fireis built nnderbox Dthe heat will be most intense under that box and gradually decrease as it passes to thefiue. The furnace is supplied with three sets of cranks, (one for each box,) E, F, and G, playing upon valves 0 c c c and c, by means of which the heat can be prevented from touchin gthe boxes 0 G 0 but forced to pass through the lower channel into the flue H, as shown on Fig. 2 in red lines. Those valves 0 0 o c and c are separate for each box, and in that way the heat can be applied 'to either, all, or none of the boxes, as the case may require. The partitions d d d, to which thosevalves are attached, are firmly walled into the furnace; but the partition f, being immediately over the fire, is movable, being slipped'into a groove made in the walls of the furnace near the top. This partition orplate canbe drawn entirely out of the furnace endwise, or slipped in in the same way, as the case may require.

o o o 0 represent pipes for the purpose of running the juice from one box into the other, as the case may require.

a a a a, &c.,'are the arms which are attached. to the cranks E, F, and G, by means of which the valves are worked.

K'represents a door, one of which is attached to each side of the box on the furnace, for the purpose of letting cool air to the bottoms of theboxes to cool them more quickly and prevent the burningot' the juice.

A represents the furnace.

' Operation: First fill box 0 with juice from the mill andputa l'ew gallons of watcrin each of the other boxes, at the same time shutting the heat ofl' from boxes 0' and C, letting the fire strike box 0 only. As soon as the juice in box 0 boils, skim it and discharge it into a separate box attached to box O ,(desiguated as box G and fillbox U again with juice from the mill. Bring this to a boil and skim it. Then .discharge the contents of box G into box 0,

leaving thesettlin gs in box (J to be washed out before it is filled again from box 0 Then discharge box 0 again into box 0 Fill boxC again from the mill. box 0' and box 0 As soon as box 0 boils, skim it and empty it into box 0 Previous to this last-mentioned discharge box 0 must be discharged into box 0. Then discharge box (J into box 0' again, and box 0 is ready to receive the discharge of box (3 again. Then let the fire'st'rike box 0 and O and O and boil it till box 0 is done, observing the shutting off of the heat from box 0 to prevent it from burnin g when near done. But the operator will generally commence boiling in but), using box (3 for heating water. In that case he must finish over box I). If so, he will observe to slip plate 11 into the groove in the furnace to prevent box D from burning, (when near done,) the heat radiating from plate (1 being suflicient to finish said box withoutdangerof burnin g. Themafter said box is done and refilled, plate (1 will-be withdrawn, letting the fire strike the bottom of box D, as before. As soon as box 0 is done (or D, as the case may be) and emptied, discharge box G into it and fill box 0 from box 0 and box 0 from box 0 and box 0 from the mill, as before. If the heat under either or all the boxes should be too intense in spite of shutting the fire off by means of the valves, the doors K might be opened to admit cool air and assist in cooling the same. Withthis mode of operation I have no use for box D, the fur-' nace under'it being covered with an iron plate. This box I) can be removed and its place only Then let the heat strike used for a furnace, or used as above specified, thus using it to finish in.

Itmust be observedthatl neutralize the acid in the fresh juice with lime or bisulphate of lime, before it comes to a boil in box 0 or the box first used. I can have a settlin g-box by the side of each box on the furnace, to be used as box 0 orI can dispense with them altogether,

permitting the juice to settle in any box, or

each box successively, by shuttingofi' the heat.

I can make my furnace to use any number of boxes. I can also reverse, it, placing flue H or the chimney at theend of plate "0. and building'the lire under box' Chit desired; but in this case-the chimney will have to be a third higher, itbeing in this case a third longer than the horizontal length of the fine, while in the other only equal to it. Ican have any one, all, or none of my boxes tob'oil or stop'at the pleasure of. the operator.

If desired to make an eva 'iorator capable, with three boxes, of making from seventy-five to eighty gallons per day, the furnaceshonld be twenty feet long, twenty inches wide'in the Q clear. .Theboxes shouldbe about five feet long and two feet wide at the bottom, and should flare considerably at the top. The chimneyin all, cases should be as long as the horizontal length of the furnace.

1 ,I do not claim the furnaceA, northeboxes O, 0, O O orv D; nor. doleleim the valves 0 c c 00, northe cranks E, F, and G, nor the doors K, nor the'plate'f; -.but

, What I do claim, and desire to secure by Let ters Patent of the United States, is-

1 The combination of the furnace A with the valves 0 c c 0 and c, the gradnations with plates B B B B and fithe boxes 0, 0, O O and D, the partitions d d daud doors K, and the pipes 0' 0 o 0', all, or as many of each of the 

